Most smaller diesel engines operate on a CAV high-pressure fuel distributor pump, however in this case we are going to specify Perkins engines 4-108, 4-236,6-354. you may have run out of fuel or you may have fuel filter problems. In either case your engine is not going to start. You need to be very wise with battery power, and even if you did run out of fuel it is probably wise to put new fuel filters on anyway..

BLEEDING the fuel system..... all high-pressure pump's have a bleeder screw on the side of the pump. You also have a manual lift, pump that you can pump by hand without cranking the engine. Number one, change your filters both primary and secondary, after you remove the old filter,Prime the new filter with fresh diesel fuel,install the filters.make sure you have fuel in your fuel tank. next on the secondary filter (the little one) you will see a pipe fitting on the very top of the filter you need to loosen this. Next ,pump the manual lift,pump until clean fuel bleeds out with no air.. Retight the pipefitting on top of the little fuel filter. Look on the side of the fuel disturber,pump you'll see a quarter-inch bleeder screw a 5/16 or 1/4 box end wrench should fit. Loosen the screw about three turns. Pump your hand lift pumpuntil clean fuel comes out with absolutely no AIR. tighten the Bleeder screw. Pump the hand lift Pump vigorously for a while longer, make sure there are no leaks. Now you are ready to start your engine. you will want to give it extra throttle. Once the engine starts decrease to throttle back to normal . Check for leaks while engine is running.....................CapG

By the way, not all high-pressure pump's have a bleeder screw on the side of the pump. They have a bleeder on the low pressure side of the pump. Check any Yanmar. You bleed the hi pressure side at the injector and no one would ever recommend a newbie do this as the fuel under pressure could cause harm.

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register. Please enter your desired user name, your email address and other required details in the form below.Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.

User Name:

Password

Please enter a password for your user account. Note that passwords are case-sensitive.

Password:

Confirm Password:

Email Address

Please enter a valid email address for yourself.

Email Address:

Log-in

User Name

Remember Me?

Password

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.